Cov txheej txheem:
- Txhawm rau xam cov lej ntawm subatomic hais hauv ib lub atom, siv nws tus lej atomic thiab tus lej loj:
- Qhov tseem ceeb subatomic particles
Video: Dab tsi yog tus naj npawb ntawm subatomic hais hauv atom ntawm B11?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ces qhov loj tus lej yog tag nrho protons ntxiv neutrons . Rau boron - 11 tag nrho no yog 11 , thiab tsib cov khoom yog protons , li no 11 −5=6 neutrons.
Ib yam li ntawd, koj ua li cas thiaj nrhiav tau tus naj npawb ntawm cov subatomic hais hauv ib lub atom?
Txhawm rau xam cov lej ntawm subatomic hais hauv ib lub atom, siv nws tus lej atomic thiab tus lej loj:
- tus naj npawb ntawm protons = atomic tooj.
- tooj ntawm electrons = atomic tooj.
- tus naj npawb ntawm neutrons = loj tus naj npawb - atomic tooj.
Tsis tas li ntawd, pes tsawg neutrons nyob rau hauv ib lub atom ntawm HG 201? 121 neutron
Tib neeg kuj nug, pes tsawg tus protons electrons thiab neutrons hauv boron 11?
Boron-11 muaj 5 electrons. Tus naj npawb 11 sawv cev rau cov lej loj uas yog cov lej ntawm protons thiab neutrons. Yog tias koj saib hauv daim ntawv teev sijhawm, koj yuav pom tias boron muaj 5 protons.
Yuav ua li cas koj nrhiav tau tus naj npawb ntawm hais nyob rau hauv ib tug nucleus?
Qhov tseem ceeb subatomic particles
- Tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm lub atom yog sib npaug rau atomic tooj (Z).
- Tus naj npawb ntawm cov electrons nyob rau hauv ib qho nruab nrab atom yog sib npaug rau tus naj npawb ntawm protons.
- Qhov loj ntawm lub atom (M) yog sib npaug rau cov lej ntawm cov protons thiab neutrons nyob rau hauv lub nucleus.
Pom zoo:
Tus naj npawb ntawm protons hauv tooj liab yog dab tsi?
29 Tsis tas li ntawd, muaj pes tsawg protons neutrons thiab electrons muaj tooj liab? Tooj liab muaj tus lej atomic ntawm 29 , yog li nws muaj 29 proton thiab 29 electrons. Qhov hnyav atomic (tej zaum hu ua atomic mass) ntawm ib lub atom yog kwv yees los ntawm cov lej ntawm cov protons thiab cov naj npawb ntawm cov neutrons hauv lub nucleus ntawm lub atom.
Tus naj npawb ntawm valence electrons hauv txhuas yog dab tsi?
plaub Dhau li ntawm no, koj ua li cas txiav txim seb tus naj npawb ntawm valence electrons? Rau nruab nrab atoms, lub tus naj npawb ntawm valenceelectrons yog sib npaug rau cov atom lub ntsiab pawg tus lej . Pab pawg tseem ceeb tus lej rau ib lub caij tuaj yeem pom los ntawm nws cov kab hauv lub rooj zaum.
Tus naj npawb ntawm cov hlwb tsim hauv meiosis yog dab tsi?
Plaub tus ntxhais
Tus naj npawb ntawm neutrons hauv cesium yog dab tsi?
Daim duab ntawm lub nuclear muaj pes tsawg leeg thiab electron configuration ntawm ib tug atom ntawm caesium-133 (atomic tooj: 55), feem ntau isotope ntawm lub caij no. Lub nucleus muaj 55 protons (liab) thiab 78 neutrons (xiav)
Dab tsi yog tus naj npawb ntawm protons hauv atom ntawm silicon nrog cov lej loj tshaj plaws?
Piv txwv li, silicon muaj 14 protons thiab 14 neutrons. Nws atomic tooj yog 14 thiab nws atomic mass yog 28. Qhov feem ntau isotope ntawm uranium muaj 92 protons thiab 146 neutrons. Nws atomic tooj yog 92 thiab nws atomic mass yog 238 (92 + 146). 2.1 Electrons, Protons, Neutrons, thiab Atoms. Element Iron Symbol Fe Number of Electrons in Txhua Plhaub Thawj 2 Thib Ob 8 Peb 14